Plaster Surface Model by Alexander Crum Brown, c 1900.

Model of a Half-Twist Surface by Alexander Crum Brown, c 1900.

Knitted light blue wool in a Klein bottle shape

Locked cylinder of three interlacing sheets of leather, with elliptical shapes

Knitted interlacing red

Three interlacing sheets of red, blue and yellow wool, in a cylinder shape

Etching by W. Hole from "Quasi Cursores"

Varnished interlacing sheets of leather in a cylinder shape

Varnished interlacing sheets of leather in a cylinder shape

Knitted interlacing surfaces in green

Interlacing sheets of different coloured varnished papier mache

See more related objects